A study tested 2,212 male Navy recruits for tuberculosis and found 55 positive reactions. This represents a prevalence of 55 per 100 recruits or 2.5% overall. The study also analyzed prevalence between age groups and races, finding the highest rate in a specific age group and race.

1. A study published in Archives of Internal Medicine (Trump et al., 1993) determined the
current prevalence of tuberculin reactors among young adults entering the U.S. Navy. A
total of 2,212 male recruits were tested in January and February 1990 and 55 had
tuberculin reactions. What was the overall prevalence of the male Navy recruit population
per 100 recruits? ____________________
Calculate the prevalence for the recruits according to the three age groups in the table
below and according to race/ethnic group. Which age group and race/ethnic group had the
highest prevalence of tuberculin reactors?
____________________________________________________________________
5. A study published in Archives of Internal Medicine (Trump et al., 1993) determined the
current prevalence of tuberculin reactors among young adults entering the U.S. Navy. A total of
2,212 male recruits were tested in January and February 1990 and 55 had tuberculin reactions.
What was the overall prevalence of the male Navy recruit population per 100 recruits? Calculate
the prevalence for the recruits according to the three age groups in the table below and according
to race/ethnic group. Which age group and race/ethnic group had the highest prevalence of
tuberculin reactors?